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Trigno
Wireless
®
Biofeedback System
__
Maize EMG Sensor
User's Guide
Copyright © 2023 by Delsys Incorporated
MAN-044-1-2
6/16/2023
MP1355C
No part of this document may be reproduced, transmitted, transcribed, stored in a
retrieval system, or translated into any language in any form by any means without the
written permission of Delsys Inc.
Delsys® and Trigno® are registered trademarks of Delsys Incorporated.
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Summary of Contents for Delsys Trigno Maize SP-W06-029
- Page 1 No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form by any means without the written permission of Delsys Inc. Delsys® and Trigno® are registered trademarks of Delsys Incorporated.
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Page 2: Table Of Contents
Table of Contents Table of Contents ....................2 Important Information ................3 Intended Use ......................3 Contraindications ....................3 Technical Service and Support ................3 Warnings and Precautions ..................4 Device Information ....................5 Recommended PC Specifications ................6 ® Trigno System Overview ................ -
Page 3: Important Information
Technical Service and Support For information and assistance please visit our website at www.delsys.com contact us via: For information and assistance please visit our web site at: www.delsys.com Contact us at: E-mail: support@delsys.com Telephone: (508) 545 8200 Maize EMG Sensor User’s Guide... -
Page 4: Warnings And Precautions
Connect only to Delsys-approved devices. Connecting a patient to high-frequency surgical equipment while using Delsys EMG systems may result in burns at the site of the EMG sensor contacts. Immediately discontinue device use if skin irritation or discomfort occurs. -
Page 5: Device Information
Isolated device, (Class II, IEC 60601-1) Type BF Equipment. Date of Manufacturing (appears on device) Manufacturer: Delsys Inc. 23 Strathmore Rd. Natick, MA, 01760, USA Serial Number (appears on device) Dispose the device according to local rules for electronic waste. -
Page 6: Recommended Pc Specifications
Connect the equipment into outlet on a separate circuit. Pursuant to FCC 15.21 of the FCC rules, changes not expressly approved by Delsys Inc. could void the User’s authority to operate the equipment. Recommended PC Specifications • Trigno Discover® Software •... -
Page 7: Trigno System Overview
® Trigno System Overview The Trigno Maize Sensor is a component of the Trigno Wireless Biofeedback ® ® System, which is a device designed to make EMG and biofeedback signal detection reliable and easy. The system transmits signals from Trigno sensors to a receiving base station unit using a time-synchronized wireless protocol that minimizes data latency across sensors. -
Page 8: 16-Contact Emg Sensing
16-contact EMG Sensing Trigno Maize sensors are defined by a 16-channel, low noise, high signal fidelity architecture for detecting EMG biofeedback signals from the surface of the skin when muscles contract. The sensor bandwidth is optimized for surface signals at 20-450 Hz. The DC dynamic range and AC dynamic range are tunable for optimal signal-to-noise performance under a wide breadth of conditions spanning 83-1000 mV for DC offset management and 15.6-20.8 mV for AC (EMG) signals. -
Page 9: Onboard Imu
Onboard IMU The sensor has a built-in IMU which can report back triaxial accelerometer data with a ±2g, ±4g, ±8g, or ±16g range, as well as triaxial rotational data from a ±250, ±500, ±1000 and ±2000 dps gyroscope. EMG data can only be reported in RMS mode when operating the onboard IMU. -
Page 10: Data Synchronization
LED State Descriptions 1) Power Off: No LED arrow activity is present when the sensor is off. 2) Power On: When undocked, the sensor illuminates white and fades to black. A magnetic field will turn the sensor on within 6 seconds, otherwise the arrow fades to dark and sensor turns off. -
Page 11: Wireless Communication
Wireless Communication The Trigno wireless communication scheme offers robust data transmission for up to four Maize sensors operating in full bandwidth mode, with a range of 20m. Under optimal environmental conditions (no RF path obstructions or interfering sources), this nominal distance can be notably superseded. When operating the sensors in RMS mode, up to 16 can be used simultaneously. -
Page 12: Getting Started With The Trigno Maize Sensor
Getting Started with the Trigno Maize Sensor Please refer to the Trigno System User guide for key operational details regarding the base station, sensor charging, and initiating the sensor. Configuring the Trigno Maize Sensors Once paired to the system, EMG data from sensor can be configured through the software in the following ways: Electromyographic (EMG) Sensing Ranges Gain Selection... -
Page 13: Electrode Contact Configuration
activities. In these situations, reducing the gain will increase the dynamic range of the sensor and restore the signal amplitudes. Conditions of high skin impedance can be mitigated by following proper skin preparation as described in the Trigno Wireless Biofeedback System User Guide. Electrode Contact Configuration Maize sensors employ a unique differential electrode geometry which provides optimal signal detection with respect to a single common electrode contact. -
Page 14: 9-Channel Subset Assignment
9-Channel Subset Assignment The Maize sensor can be operated in a fast sampling mode of 2000 samples/sec across 9 channels, to a resolution depth of 15 bits. Top View In this mode a choice of signal bandwidth (looking through sensor) between 20 –... -
Page 15: Cleaning The Sensor Site
The sensor body and sensor head are easily attached to the skin using the Delsys Adhesive Sensor Interfaces. The arrow features on the sensor head and sensor body can be used to align the detection contacts with the propagation direction of the EMG signals along the muscle fibers. -
Page 16: Maintenance And Care
Maintenance and Care Trigno Maize Sensors Trigno Maize sensors are encased in a sealed polycarbonate enclosure. The following points should be kept in mind when handling the sensors. • All sensors should be visually inspected before each use to ensure that no mechanical deterioration has occurred. -
Page 17: Specifications
Specifications Physical Specifications Dimension (Body) 27 x 46 x 13 mm Dimension (Head) 50 x 30 x 9 mm Cable length 150 mm Mass 20 g Temperature Range 5 - 45 degrees Celsius EMG Contact Dimensions 2 mm diameter Reference / Common Contact Dimension 5 x 1 mm EMG Contact Grid spacing 6 mm... - Page 18 This page intentionally left blank MAN-044-1-2...
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